22875817 has 2 divisors, whose sum is σ = 22875818. Its totient is φ = 22875816.

The previous prime is 22875803. The next prime is 22875857. The reversal of 22875817 is 71857822.

It is an a-pointer prime, because the next prime (22875857) can be obtained adding 22875817 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15280281 + 7595536 = 3909^2 + 2756^2 .

It is a cyclic number.

It is not a de Polignac number, because 22875817 - 2⁷ = 22875689 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22875817.

It is not a weakly prime, because it can be changed into another prime (22875857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11437908 + 11437909.

It is an arithmetic number, because the mean of its divisors is an integer number (11437909).

Almost surely, 2^22875817 is an apocalyptic number.

It is an amenable number.

22875817 is a deficient number, since it is larger than the sum of its proper divisors (1).

22875817 is an equidigital number, since it uses as much as digits as its factorization.

22875817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 40.

The square root of 22875817 is about 4782.8670272129. The cubic root of 22875817 is about 283.8739480613.

The spelling of 22875817 in words is "twenty-two million, eight hundred seventy-five thousand, eight hundred seventeen".